Title :
Decomposition Proportional Fairness Algorithm for Multiuser OFDM Systems
Author :
Zhang, Lili ; Jin, Cihang ; Zhou, Wuyang
Author_Institution :
PCN&SS Lab., Univ. of Sci. & Technol. of China, Hefei
Abstract :
In this paper, we formulate a proportional fairness problem for downlink OFDM systems. Different from all the previous works, a completely new framework is presented by decomposing it into two levels: the master problem and the subproblems. Our proposed algorithm could remarkably reduce the computational complexity in the base station and the feedback overhead. Numerical results demonstrate that this algorithm could provide much better proportional fairness as well as enhance the system throughput.
Keywords :
OFDM modulation; feedback; multi-access systems; radio links; computational complexity; decomposition proportional fairness algorithm; downlink OFDM system; feedback overhead; multiuser system; Bandwidth; Base stations; Communications Society; Computational complexity; Conferences; Downlink; Feedback; OFDM; Resource management; Throughput;
Conference_Titel :
Communications Workshops, 2008. ICC Workshops '08. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2052-0
Electronic_ISBN :
978-1-4244-2052-0
DOI :
10.1109/ICCW.2008.9
